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Stamps of
German Democratic Republic
,
100 years Carl-Zeiss-Foundation, Jena
issue
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1 to 2 of 2
postage
1989
, May 16
100 years Carl-Zeiss-Foundation, Jena issue
unwmk
(no perf info)
-
50pf
multi
Interference microscope JENAVAL Interphako
-
85pf
multi
Twice-coordinates-gauge ZKM 01-250 C
1 to 2 of 2